Download or read book Polyurethane Elastomers written by Cristina Prisacariu and published by Springer Science & Business Media. This book was released on 2011-07-03 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive account of the physical / mechanical behaviour of polyurethanes (PU ́s) elastomers, films and blends of variable crystallinity. Aspects covered include the elasticity and inelasticity of amorphous to crystalline PUs, in relation to their sensitivity to chemical and physical structure. A study is made of how aspects of the constitutive responses of PUs vary with composition: the polyaddition procedure, the hard segment, soft segment and chain extender (diols and diamines) are varied systematically in a large number of systems of model and novel crosslinked andthermoplastic PUs. Results will be related to: microstructural changes, on the basis of evidence from x-ray scattering (SAXS and WAXS), and also dynamic mechanical analyses (DMA), differential scanning calorimetry (DSC) and IR dichroism. Inelastic effects will be investigated also by including quantitative correlations between the magnitude of the Mullins effect and the fractional energy dissipation by hysteresis under cyclic straining, giving common relations approached by all the materials studied. A major structural feature explored is the relationship between the nature of the hard segment (crystallising or not) and that of the soft segments. Crystallinity has been sometimes observed in the commercial PUs hard phase but this is usually limited to only a few percent for most hard segment structures when solidified from the melt. One particular diisocyanate, 4,4’-dibenzyl diisocyanate (DBDI) that, in the presence of suitable chain extenders ( diols or diamines), gives rise to significant degrees of crystallinity [i-iii] and this is included in the present work. Understanding the reaction pathways involved, in resolving the subtle morphological evolution at the nanometre level, and capturing mathematically the complex, large-deformation nonlinear viscoelastic mechanical behaviour are assumed to bring new important insights in the world basic research in polyurethanes and towards applied industrial research in this area.
Download or read book Highway Safety Literature written by and published by . This book was released on 1973 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Safety Literature written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemical Characterisation of Polyurethanes written by M. J. Forrest and published by iSmithers Rapra Publishing. This book was released on 1999 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: This review aims to introduce the chemistry of polyurethanes, and to examine the different techniques which may be used to analyse these polymers. The characterisation of polyurethane starting materials, cure reaction, polymer structures and molecular c099, and additives, and their relationship to the final properties of the polymer are all outlined. An additional indexed section containing several hundred abstracts from the Rapra Polymer Library database gives useful references for further reading.
Download or read book Handbook of Thermoplastic Elastomers written by Jiri George Drobny and published by Elsevier. This book was released on 2014-05-30 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Thermoplastic Elastomers, Second Edition presents a comprehensive working knowledge of thermoplastic elastomers (TPEs), providing an essential introduction for those learning the basics, but also detailed engineering data and best practice guidance for those already involved in polymerization, processing, and part manufacture. TPEs use short, cost-effective production cycles, with reduced energy consumption compared to other polymers, and are used in a range of industries including automotive, medical, construction and many more. This handbook provides all the practical information engineers need to successfully utilize this material group in their products, as well as the required knowledge to thoroughly ground themselves in the fundamental chemistry of TPEs. The data tables included in this book assist engineers and scientists in both selecting and processing the materials for a given product or application. In the second edition of this handbook, all chapters have been reviewed and updated. New polymers and applications have been added — particularly in the growing automotive and medical fields — and changes in chemistry and processing technology are covered. - Provides essential knowledge of the chemistry, processing, properties, and applications for both new and established technical professionals in any industry utilizing TPEs - Datasheets provide "at-a-glance" processing and technical information for a wide range of commercial TPEs and compounds, saving readers the need to contact suppliers - Includes data on additional materials and applications, particularly in automotive and medical industries
Download or read book Applications of Polyurethanes in Medical Devices written by Ajay Padsalgikar and published by William Andrew. This book was released on 2022-05-19 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of Polyurethanes in Medical Devices provides detailed coverage of polyurethane (PU) chemistry, processing and preparation for performant medical devices. Polyurethanes have found many uses in medical applications, due to their biocompatibility, biostability, physical properties, surface polarity, and the ability to suit the field of application. This book enables the reader to understand polyurethane and how this valuable material can be used in medical devices. Sections cover the chemistry, structure, and properties of polyurethane, with in-depth sections examining raw materials, reaction chemistry, synthesis techniques, reaction kinetics, material microstructure, and structure-property relationships. Subsequent chapters demonstrate how polyurethane can be utilized in medical device applications, examining biological properties, rheology and processing before methodical coverage explains how polyurethane may be used for each category of medical device. Finally, future directions, and safety and environmental aspects, are covered. - Bridges the gap between polyurethane chemistry, processing and preparation for cutting-edge medical device applications - Includes in-depth coverage of polyurethane, covering raw materials, chemistry, synthesis techniques, reaction kinetics, properties and microstructural analysis - Takes a valuable and practical approach, addressing manufacturing issues and using testing and modeling to solve problems encountered in processing
Download or read book Szycher s Handbook of Polyurethanes written by Michael Szycher PhD and published by CRC Press. This book was released on 2012-07-13 with total page 1113 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical handbook rather than merely a chemistry reference, Szycher's Handbook of Polyurethanes, Second Edition offers an easy-to-follow compilation of crucial new information on polyurethane technology, which is irreplaceable in a wide range of applications. This new edition of a bestseller is an invaluable reference for technologists, marketer
Download or read book TPE 2005 written by and published by iSmithers Rapra Publishing. This book was released on 2005 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermoplastic Elastomers written by J. A. Brydson and published by iSmithers Rapra Publishing. This book was released on 1995 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nature and general properties of TPE's are explained, and the classes of materials considered in turn include styrenic block copolymers, polyether-esters, polyamides, polyurethanes, polyolefins and other miscellaneous systems. Developments in specific market sectors are also outlined. The review is supported by an extensive References and Abstracts section, containing over 400 abstracts, which provide a great deal more information on these useful materials.
Download or read book Handbook of Condensation Thermoplastic Elastomers written by Stoyko Fakirov and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reporting on the work of an international team of scientists actively involved in the study of thermoplastic elastomers (TPE) based on polyesters, polyamides, and polyurethanes, this book is the first to provide a detailed description of condensation TPE with close attention paid to polyamide-based systems. Reflecting the increasing importance of TPE as engineering plastics, the authors discuss the widened application opportunities by preparing systems with various chemical compositions and molecular structures as (semi-) interpenetrating networks. The contents also cover the chemical aspects, physical structure and properties, life cycle assessment, and recycling possibilities as well as such unique "smart" properties like the shape memory effect of the three classes of thermoplastic elastomers.
Download or read book Two Component Polyurethane Systems written by Chris Defonseka and published by Walter de Gruyter GmbH & Co KG. This book was released on 2019-05-20 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thanks to their unique physico-chemical nature, two-component polyurethane (PU) systems have found widespread industrial application. This book gives practical guidance on the selection of raw materials and machinery, as well as the calculations and formulations necessary for the successful production and processing of two-component PUs. Readers will benefit from the troubleshooting advice based on the author's extensive industry experience.
Download or read book On the Time and Temperature Dependent Behaviour of Laminated Amorphous Polymers Subjected to Low Velocity Impact written by Andreas Rühl and published by Springer. This book was released on 2017-04-05 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thesis investigates a polymeric laminate consisting of poly(methyl methacrylate) (PMMA) and thermoplastic polyurethane (TPU) experimentally and numerically with regard to its impact behaviour and applicability. After a basic characterization of the monolithic materials, PMMA-TPU-PMMA laminates were subjected to impact loadings at velocities up to 5 m/s using threepoint bending and dart impact tests. Based on the experimental basis, different material models for the Finite Element simulation are presented, which are able to capture the time and temperature dependent behaviour of the laminate. Final validation experiments, consisting of head-dummy impacts at 10 m/s on automotive side windows, were conducted for PMMA and the laminate in order to investigate their applicability as glass substitution products.
Download or read book Thermal Degradation of Polymeric Materials written by Krzysztof Pielichowski and published by Elsevier. This book was released on 2022-11-05 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Degradation of Polymeric Materials, Second Edition offers a wealth of information for polymer researchers and processors who require a thorough understanding of the implications of thermal degradation on materials and product performance. Sections cover thermal degradation mechanisms and kinetics, as well as various techniques, such as thermogravimetry in combination with mass spectroscopy and infrared spectrometry to investigate thermal decomposition routes. Other chapters focus on polymers and copolymers, including polyolefins, styrene polymers, polyvinyl chloride, polyamides, polyurethanes, polyesters, polyacrylates, natural polymers, inorganic polymers, high temperature-resistant and conducting polymers, blends, organic-inorganic hybrid materials, nanocomposites, and biocomposites. Finally, other key considerations such as recycling of polymers by thermal degradation, thermal degradation during processing, and modelling, are discussed in detail. - Explains mechanisms of polymer degradation, making it possible to understand and predict material behavior at elevated temperatures - Offers systematic coverage of each polymer group that is supported by data detailed explanations and critical analysis - Investigates thermal decomposition routes in new materials, such as organic-inorganic hybrid materials and polymer nanocomposites
Download or read book SAE Transactions and Literature written by and published by . This book was released on 1974 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Handbook of Elastomers written by Anil K. Bhowmick and published by CRC Press. This book was released on 2000-11-02 with total page 941 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides the latest authoritative research on the developments, technology, and applications of rubbery materials. Presents structures, manufacturing techniques, and processing details for natural and synthetic rubbers, rubber-blends, rubber composites, and thermoplastic elastomers. 80% revised and rewritten material covers major advances since publication of the previous edition.
Download or read book Advances in Polymer Nanocomposites written by Fengge Gao and published by Elsevier. This book was released on 2012-10-19 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: The addition of nanoparticles to polymer composites has led to a new generation of composite materials with enhanced and novel properties. Advances in polymer nanocomposites reviews the main types of polymer nanocomposites and their applications.Part one reviews types of polymer nanocomposites according to fillers. Processing of carbon nanotube-based nanocomposites, layered double hydroxides (LDHs) and cellulose nanoparticles as functional fillers and reinforcement are discussed, alongside calcium carbonate and metal-polymer nanocomposites. Part two focuses on types of polymer nanocomposites according to matrix polymer, with polyolefin-based, (PVC)-based, nylon-based, (PET)-based and thermoplastic polyurethane (TPU)-based polymer nanocomposites discussed. Soft, gel and biodegradable polymer nanocomposites are also considered. Part three goes on to investigate key applications, including fuel cells, aerospace applications, optical applications, coatings and flame-retardant polymer nanocomposites.With its distinguished editor and international team of expert contributors, Advances in polymer nanocomposites is an essential guide for professionals and academics involved in all aspects of the design, development and application of polymer nanocomposites. - Reviews the main types of polymer nanocomposites and their applications - Discusses processing of carbon nanotube-based nanocomposites, layered double hydroxides (LDHs) and cellulose nanoparticles as functional fillers and reinforcement - Discusses polyolefin-based, (PVC)-based, nylon-based, (PET)-based and thermoplastic polyurethane (TPU)-based polymer nanocomposites
